int main()
{
char s[100];
double a, b;
struct complex C1, C2;
printf("Введите комплексное число в формате a, b: ");
scanf("%lf%lf", &a, &b);
C1 = cRead(a, b);
cPrint(C1);
printf("Введите комплексное число в формате a,b: ");
scanf("%lf%lf", &a, &b);
C2 = cRead(a,b);
cPrint(C2);
printf("РЎСѓРјРјР°: ");
cPrint(cAdd(C1, C2));
printf("Разность: ");
cPrint(cSub(C1, C2));
printf("Произведение: ");
cPrint(cMul(C1, C2));
printf("Частное: ");
cPrint(cDiv(C1, C2));
printf("Модуль 1-ого: %f: \n", cAbs(C1));
printf("Аргумент 1-ого: %f: \n", cArg(C1));
printf("Сопряжённое 1-ого: "); cPrint(cConj(C1));
printf("Re 1-РѕРіРѕ: %f: \n", cReal(C1));
printf("Im 1-РѕРіРѕ: %f: \n", cImag(C1));
return 0;
}
int identical(FIELD** rm,ulong n1,ulong n2)
{
ulong i,j;
for(j=0;j<n1;j++) //col
{
for(i=j;i<n1&&rm[i][j]==0;i++)
;
if(i==n1)
return cFALSE; //singular matrix
else if(i!=j) //make rm[j][j] nonzero
{
FIELD* temp=rm[i];
rm[i]=rm[j];
rm[j]=temp;
}
cDiv(rm[j],n2,rm[j][j]); //make rm[j][j]=1
for(i=0;i<n1;i++) //make rm[i][j]=0 (i!=j)
{
if(rm[i][j]==0||i==j)
continue;
cMulvAdd(rm[i],rm[j],n2,gfsub(0,rm[i][j]));
}
}
return cTRUE;
}
void TForm1::compute_spring_forces()
{
double curtime = g_timer.GetTime();
if (g_last_iteration_time < 0)
{
g_last_iteration_time = curtime;
return;
}
double elapsed = curtime - g_last_iteration_time;
g_last_iteration_time = curtime;
unsigned int i;
// Clear the force that's applied to each ball
for(i=0; i<m_active_balls.size(); i++)
{
m_active_balls[i]->current_force.set(0,0,0);
}
if (simulationOn)
{
CBall* b = m_active_balls[0];
cVector3d old_p = b->getPos();
b->setPos(tool->m_deviceGlobalPos);
b->m_velocity = cDiv(elapsed,cSub(b->getPos(),old_p));
}
// Compute the current length of each spring and apply forces
// on each mass accordingly
for(i=0; i<m_active_springs.size(); i++)
{
CSpring* s = m_active_springs[i];
double d = cDistance(s->m_endpoint_1->getPos(),s->m_endpoint_2->getPos());
s->m_current_length = d;
// This spring's deviation from its rest length
//
// (positive deviation -> spring is too long)
double x = s->m_current_length - s->m_rest_length;
// Apply a force to ball 1 that pulls it toward ball 2
// when the spring is too long
cVector3d f1 = cMul(s->m_spring_constant*x*1.0,
cSub(s->m_endpoint_2->getPos(),s->m_endpoint_1->getPos()));
s->m_endpoint_1->current_force.add(f1);
// Add the opposite force to ball 2
s->m_endpoint_2->current_force.add(cMul(-1.0,f1));
}
// Update velocities and positions based on forces
for(i=0; i<m_active_balls.size(); i++)
{
CBall* b = m_active_balls[i];
// Certain forces don't get applied to the "haptic ball"
// when haptics are enabled...
if (simulationOn == 0 || i != 0) {
cVector3d f_damping = cMul(DAMPING_CONSTANT,b->m_velocity);
b->current_force.add(f_damping);
}
cVector3d f_gravity(0,GRAVITY_CONSTANT*b->m_mass,0);
b->current_force.add(f_gravity);
cVector3d p = b->getPos();
if (p.y - b->m_radius < FLOOR_Y_POSITION) {
double penetration = FLOOR_Y_POSITION - (p.y - b->m_radius);
b->current_force.add(0,m_floor_spring_constant*penetration,0);
}
cVector3d f_floor(0,0,0);
cVector3d a = cDiv(b->m_mass,b->current_force);
b->m_velocity.add(cMul(elapsed,a));
// We handle the 0th ball specially when haptics is enabled
if (simulationOn == 0 || i != 0) {
p.add(cMul(elapsed,b->m_velocity));
b->setPos(p);
}
}
// Set the haptic force appropriately to reflect the force
// applied to ball 0
m_haptic_force = cMul(HAPTIC_FORCE_CONSTANT,m_active_balls[0]->current_force);
}